national metrology institutes

How effective are solar modules? – PTB.de

July 19, 2023 Office

PTBnews 2.2023 At PTB’s Competence Center for Photovoltaics, a new measuring facility has been developed with which the performance of solar modules under standard test conditions can be determined with much greater accuracy compared to […]

Confidence in virtual flowmeters – PTB.de

May 17, 2023 Office

PTBnews 2.2023 A method for calculating the simulation uncertainty of a virtual ultrasonic flowmeter has been developed in PTB’s VirtMet Competence Center. This method allows calibration factors relevant to fluid mechanics to be calculated for […]

Calibrating digital electrical energy meters – PTB.de

April 18, 2023 Office

PTB-News 1.2023 – Real-time capable controlling and monitoring systems are necessary when it comes to ensuring the stability of future electrical distribution and transmission grids. Also required are meters that can accurately and with high […]

Sounding Out a New Way to Measure Gas Flow | NIST News

March 31, 2023 Office

Researchers at NIST have developed a new — and sound — way to accurately measure the rate at which gas flows in and out of a vessel. The technique, which uses acoustic waves to determine […]

Improving confidence in measurement data from state-of-the-art PTR-MS – NPL

March 22, 2023 Office

13 Mar 2023, NPL News NPL and the University of Utrecht, Netherlands have collaborated to develop new SI-traceable gas reference materials and a fast calibration approach to improve the quantification and comparability of proton-transfer reaction mass […]

How effective are solar modules? – PTB.de

Confidence in virtual flowmeters – PTB.de

Calibrating digital electrical energy meters – PTB.de

Sounding Out a New Way to Measure Gas Flow | NIST News

Improving confidence in measurement data from state-of-the-art PTR-MS – NPL

Artifacts, Begone! NIST Improves Its Flagship Device for Measuring Mass | NIST

Ocean Color System Gets a ‘Refresh,’ Allowing for More Precise and Accurate Measurements | NIST

Effects of Impurities on the Freezing Plateau of the Triple Point of Water